regularish stutter

[fallen gulch]

basically i have the same problem as this user https://forums.linuxmint.com/viewtopic.php?t=442191
every 6 seconds or so everything BUT the mouse cursor lags, very often while scrolling in firefox and in nemo.
no idea what it could be or what to do about it

i left out repos cause i had to switch to a local mirror recently

also it seems to happen much much less on cinnamon wayland, though i dont really use it because the keyboard lock is terrible

[gilded dew]

1/ - I think your specs indicate AMD gpu? Have you disconnected your GPU and boot once and then shut your PC down once and disconnect power? This may be a system cache problem at the kernel load stage, as it also occurs on the nvidia gpus on an AMD machine as well. both in linux and in windows.